Schaefer Single Block w/ Swivel Shackle Triple Sheave(45mm) the lanyard is attached to

the lanyard is attached to the blunt end and can be pulled out either by hand or by winch

Main fabric: 79% Cotton 18% Polyester

this is the same shackle that has had its place in every major yachting event since its creation

NO EXTRA REINFORCING ON THE SEAT PANELS

Schaefer Single Block w/ Swivel Shackle Triple Sheave(45mm) the lanyard is attached toProduct Description Schaefer Single Block w Swivel Shackle Single Block swivels for clear, clean leads. For control lines on boats to 18'. Swivel allows varying line leads. Specifications: Sheave Dia.: 3 4 in. (19 mm) Sheave Width: 11 32 in. (9 mm) Pin Dia.: 3 16 in. (5 mm) Thickness: 15 32 in. (12 mm) Width: 7 8 in. (22 mm) Length: 2 19 32 in. (66 mm) SWL: 750 lbs. (340 kg) Weight: 1 oz. (28 g) Max Line: 1 4 in. (6 mm)